Martina Navratilova is angry that a candidate running for a county office used a photo of the tennis star that she says suggested an endorsement. Joe Renna met Navratilova at a street fair last month, and she agreed to pose for a picture with him. He then sent the photo to a weekly newspaper in Cranford under the headline ``Rubbing tennis elbows.'' The caption said Renna plans ``to meet thousands...